Recent progress in hybrid perovskite solar cells based on n-type materials

2017 ◽  
Vol 5 (21) ◽  
pp. 10092-10109 ◽  
Author(s):  
Wu-Qiang Wu ◽  
Dehong Chen ◽  
Rachel A. Caruso ◽  
Yi-Bing Cheng

This review article highlights recent progress on the n-type material-based electron transporting layers for high-performance perovskite solar cells.

Coatings ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 329 ◽  
Author(s):  
Dong Shin ◽  
Suk-Ho Choi

It is necessary to develop semitransparent photovoltaic cell for increasing the energy density from sunlight, useful for harvesting solar energy through the windows and roofs of buildings and vehicles. Current semitransparent photovoltaics are mostly based on Si, but it is difficult to adjust the color transmitted through Si cells intrinsically for enhancing the visual comfort for human. Recent intensive studies on translucent polymer- and perovskite-based photovoltaic cells offer considerable opportunities to escape from Si-oriented photovoltaics because their electrical and optical properties can be easily controlled by adjusting the material composition. Here, we review recent progress in materials fabrication, design of cell structure, and device engineering/characterization for high-performance/semitransparent organic and perovskite solar cells, and discuss major problems to overcome for commercialization of these solar cells.


Author(s):  
GYUMIN KIM ◽  
Eun Seo Oh ◽  
Ajay Kumar Jena ◽  
Tsutomu Miyasaka

Controlling the evaporation kinetics of the perovskite precursor (EKP) during the thermal annealing step of organic–inorganic hybrid perovskite solar cells (OIHPs) is important for achieving high performance. Although regulation of...


2017 ◽  
Vol 5 (23) ◽  
pp. 11462-11482 ◽  
Author(s):  
Shida Yang ◽  
Weifei Fu ◽  
Zhongqiang Zhang ◽  
Hongzheng Chen ◽  
Chang-Zhi Li

In this review, we first highlighted recent progress in high-performance perovskite solar cells (PVSCs) with a discussion of the fabrication methods and PVSCs-based tandem solar cells. Furthermore, the stability issue of PVSCs and strategies to improve material and device stability have been discussed, and finally, a summary of the recent progress in lead-free perovskites has been presented.


2019 ◽  
Vol 7 (43) ◽  
pp. 13440-13446 ◽  
Author(s):  
Haeun Kwon ◽  
Saripally Sudhaker Reddy ◽  
Veera Murugan Arivunithi ◽  
Hyunjung Jin ◽  
Ho-Yeol Park ◽  
...  

A new class of HTM is designed by introducing the D–π–A approach. Dopant-free TPA-BP-OXD based solution processed planar i-PSCs on rigid and flexible substrates show PCEs of 15.46% and 12.90%, respectively, and the hysteresis is negligible with enhanced stability.


2021 ◽  
pp. 1-18
Author(s):  
Yaobo Li ◽  
Zhaohan Li ◽  
Fangze Liu ◽  
Jing Wei

This organic-inorganic hybrid perovskite materials have attracted great attention by virtue of their high absorption coefficient, low cost and simple film deposition technique. Based on these advantages, perovskite solar cells have reached an impressive power conversion efficiency over 25%. However, the low-temperature process inevitably leads to a large number of defects in the perovskite film. These defects would exacerbate the carrier recombination, induce crystal degradation, phase transformation and seriously affect the performance of devices. Studying the defects in perovskite film is of great significance for the development of high-performance perovskite solar cells. Herein, the authors summarise the causes, distribution and features of defects, as well as their effects on the performance of perovskite solar cells. Furthermore, some defect-passivation strategies on perovskite film or the device, including grain boundary passivation, surface passivation, capping layer modification and charge transport layer passivation, are discussed, respectively. Lastly, some remaining challenges in the commercialisation of perovskite solar cells are proposed.


Nanoscale ◽  
2020 ◽  
Vol 12 (34) ◽  
pp. 17590-17648 ◽  
Author(s):  
M. Aftabuzzaman ◽  
Chunyuan Lu ◽  
Hwan Kyu Kim

This paper review the recent progress of carbon-based materials as counter electrode or back electrode in dye-sensitized and perovskite solar cells considering their synthetic approaches, modification, and structure-function relationship.


Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 750
Author(s):  
Tingting Chen ◽  
Rui He ◽  
Fan Zhang ◽  
Xia Hao ◽  
Zhipeng Xuan ◽  
...  

Perovskite solar cells have exhibited astonishing photoelectric conversion efficiency and have shown a promising future owing to the tunable content and outstanding optoelectrical property of hybrid perovskite. However, the devices with planar architecture still suffer from huge Voc loss and severe hysteresis effect. In this research, Guanidine hydrobromide (GABr) post-treatment is carried out to enhance the performance of MAPbI3 n-i-p planar perovskite solar cells. The detailed characterization of perovskite suggests that GABr post-treatment results in a smoother absorber layer, an obvious reduction of trap states and optimized energy level alignment. By utilizing GABr post-treatment, the Voc loss is reduced, and the hysteresis effect is alleviated effectively in MAPbI3 solar cells. As a result, solar cells based on glass substrate with efficiency exceeding 20%, Voc of 1.13 V and significantly mitigated hysteresis are fabricated successfully. Significantly, we also demonstrate the effectiveness of GABr post-treatment in flexible device, whose efficiency is enhanced from 15.77% to 17.57% mainly due to the elimination of Voc loss.


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